
const express=require('express')
// 引入mysql模块
const mysql =require('mysql')
// 创建连接池
const pool=mysql.createPool({
  host:'127.0.0.1',
  port:'3306',
  user:'root',
  password:'',
  database:'smdata',
  connectionLimit:15
})

// 暴露对象
module.exports=pool